12464544204640 has 96 divisors (see below), whose sum is σ = 32651161754400. Its totient is φ = 4458257203200.

The previous prime is 12464544204617. The next prime is 12464544204643. The reversal of 12464544204640 is 4640244546421.

It is a super-2 number, since 2×12464544204640² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12464544204643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57942865 + ... + 58157584.

It is an arithmetic number, because the mean of its divisors is an integer number (340116268275).

Almost surely, 2^{12464544204640} is an apocalyptic number.

12464544204640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12464544204640 is an abundant number, since it is smaller than the sum of its proper divisors (20186617549760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12464544204640 is a wasteful number, since it uses less digits than its factorization.

12464544204640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116100536 (or 116100528 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 46.

The spelling of 12464544204640 in words is "twelve trillion, four hundred sixty-four billion, five hundred forty-four million, two hundred four thousand, six hundred forty".